#include <49func.h>
int main()
{
    DIR* dirp = opendir(".");
    struct dirent *direntp;
    while((direntp = readdir(dirp)) != NULL){
        printf("%s\n", direntp->d_name);
    }
    direntp = readdir(dirp);
    printf("%s\n", direntp->d_name);
    return 0;
}

